I am from China and my Schengen visa is valid until 2nd of November this year. My UK dependent visa will expire at the same time as well.

I am just wondering if I am allowed to travel 3 months before my UK visa expired?

I have seen lots of information online about Schengen visa application requirements and they all saying the applicant needs to have a valid UK visa for at least 3 months in order to apply for Schengen visa. Is it the same for people who have already have a valid Schengen visa? I am not sure if that apply on my case too. Really hope I can get an answer to confirm this so that I can go ahead and book my journey.